SCIENCE 
A WEEKLY JOURNAL DEVOTED TO THE ADVANCEMENT OF SCIENCE, PUBLISHING THE 
OFFICIAL NOTICES AND PROCEEDINGS OF THE AMERICAN ASSOCIATION 
FOR THE ADVANCEMENT OF SCIENCE. 
EDITORIAL ComMMITTEE: S. NEWwcomB, Mathematics; R. 8S. WoopDWARD, Mechanics; E. C. PICKERING, 
Astronomy ; T. C. MENDENHALL, Physics ; R. H. THURSTON, Engineering ; IRA REMSEN, Chemistry ; 
JosEPH LE ContTE, Geology ; W. M. DAvis, Physiography ; HENRY F. OSBORN, Paleontology ; 
W. K. Brooks, C. HART MERRIAM, Zoology ; S. H. ScUDDER, Entomology ; C. E. BESSEY, 
N. L. Britton, Botany; C. S. Minot, Embryology, Histology; H. P. BowniTcH, 
Physiology; J. 8S. BILLINGS, 
Hygiene ; 
WILLIAM H. WELCH, Pathology ; 
J. MCKEEN CATTELL, Psychology ; J. W. POWELL, Anthropology. 
Fripay, JUNE 21, 1901. 
CONTENTS : 
The American Association for the Advancement of 
SBIFWERs coocaeccvagpcoqe oad qooresunaaeesuecDogNAdeDEoHoOnS 961 
A Kinetic Theory of Evolution: O. F. COOK......... 969 
Miles Rock; WILLIAM EIMBECK ..........-.seseeeeee 978 
Otto Lugger : DR. L. O. HOWARD........2.00eeeeeees 980 
Scientific Books :— 
Pound and Clements on the Phytogeography of 
Nebraska: PROFESSOR ARTHUR HOLLICK. 
Simpson's Synopsis of the Naiades: PROFESSOR 
40 ID, Ale (COCR STRTRTET Rs monnosandeonscocen¢ooon0 neoneonon 981 
Scientific Journals and Articles........0+s.ceeceeeeeeres 984 
Societies and Academies :— 
Philosophical Society of Washington : CHARLES 
K. WEAD. Torrey Botanical Club: MARSHALL 
A. Howe. The Academy of Science of St. Louis: 
PROFESSOR WILLIAM TRELEASE......... aaco0ga0ee 985 
Discussion and Correspondence :— 
Remarkable Discoveries. An Earthwork Discov- 
ered in Michigan: HARLAN I. SMITH. Phys- 
iology in the Schools: PROFESSOR S. W. WIL- 
TLIGSINOWT sococeneconasosonsqsns00cdN6000060. DoandIDDNDNGBedN 987 
Shorter Articles :-— 
What is Life? PROFESSOR JOSEPH LECONTE. 
A ‘Sand Bow’: PRorEssoR JAMES E, TAL- 
MUNG Toccoee aconcoonecesccqanan coRanponeoDoDOSHoBDSASNEON" 991 
Notes on Inorganic Chemistry :— 
Platinum in Antiquity ; Lead in Pottery Glazes ; 
Osmic Diffusion of Vanadium: J. L. H............ 993 
Current Notes on Meteorology :— 
Annals of the Mont Blane Observatory ; The Moon 
and the Weather ; Notes: R. DEC. WARD...... 993 
Scientific Positions Under the Government .. ........- 994 
The American ASSOCIALION ...-....02-0-eeeeeeeceeeesase 995 
Convocation Week .......cssscreeeeeeee soganang6sng309090000 996 
Scientific Notes and News.....:...0.cscceeersenseserneence 996 
University and Educational News...... Os 000RSONG000000500 999 
MSS. intended for publication and books, etc., intended 
for review should be sent to the responsible editor, Pro- 
fessor J. McKeen Cattell, Garrison-on-Hudson, N. Y. 
THE AMERICAN ASSOCIATION FOR THE AD- 
VANCEMENT OF SCIENCE. 
A NATIONAL association for the advance- 
ment of science occupies at the beginning 
of the twentieth century a dominant posi- 
tion. The greatest achievement of the nine- 
teenth century was the progress of science; 
its most definite tendency was towards the 
voluntary organization of individuals for 
The 
advance of science, the movement that is of 
the greatest importance for civilization, re- 
the accomplishment of certain ends. 
quires for its guidance the strongest associ- 
ation of individuals. Such an association 
will certainly arise, and will develop from 
existing institutions. 
The organization of science in America 
has progressed parallel to the advance of 
science. Local societies concerned with the 
-whole field of knowledge, and especially 
with its utilitarian aspects, were first es- 
tablished in Philadelphia, in Boston and in 
other cities. These societies were modeled 
on the similar institutions of Europe; the 
Philosophical Society of Philadelphia fol- 
lowing the Royal Society of London, and the 
Academy of Arts and Sciences of Boston, 
‘the Paris Academy of Sciences. As centers 
of scientific activity increased in number, 
